package com.itheima.controller;

import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import com.itheima.utils.DateUtils;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.dubbo.config.annotation.Reference;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * 报表操作
 *
 * @create 2020/11/28 0028 16:13
 */
@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private MemberService memberService;

    @Reference
    private SetmealService setmealService;

    @Reference
    private ReportService reportService;


    //会员数量折线图数据
    @RequestMapping("/getMemberReport")
    @PreAuthorize("hasAuthority('REPORT_VIEW')")
    public Result getMemberReport() {
        Map<String, Object> map = new HashMap();
        List<String> months = new ArrayList<>();
        Calendar calendar = Calendar.getInstance(); //获得日历对象,模拟时间就是当前时间
        //计算过去一年的12个月
        calendar.add(Calendar.MONTH, -12);  //获得当前时间往前推12个月的时间
        for (int i = 0; i < 12; i++) {
            calendar.add(calendar.MONTH, 1);
            Date date = calendar.getTime();
            months.add(new SimpleDateFormat("yyyy.MM").format(date));
        }
        map.put("months", months);
        List<Integer> memberCount = memberService.findMemberCountByMonths(months);
        map.put("memberCount", memberCount);
        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
    }


    //会员数量折线图数据
    @RequestMapping("/getMemberReportByTime")
    public Result getMemberReportByTime(@RequestBody Date[] value) {
        String starttime = null;
        String endtime=null;
        try {
            starttime = DateUtils.parseDate2String(value[0]);
            endtime = DateUtils.parseDate2String(value[1]);
        } catch (Exception e) {
            e.printStackTrace();
        }

      /*  System.out.println(starttime);
        System.out.println(endtime);
        DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy/MM/dd");
        LocalDateTime startDate = LocalDateTime.parse(starttime, dateTimeFormatter);
        //获取开始时间的年，月
        int startyear = startDate.getYear();
        int startmonthValue = startDate.getMonthValue();
        //获取结束时间的年，月
        LocalDateTime endDate = LocalDateTime.parse(endtime,dateTimeFormatter);
        int endyear = endDate.getYear();
        int endmonthValue = endDate.getMonthValue();*/
        Map<String, Object> map = new HashMap();
        List<String> months = ReportController.getMonthBetween(starttime,endtime);

       /* //将开始时间的年月赋值
        int month=startmonthValue;
        int year=startyear;
        for (int i = startmonthValue; i <= endmonthValue+(endyear-startyear)*12; i++) {
            if (month%13==0){
                month=1;
                year++;
            }
            String finallyTime=year+"."+month;
            months.add(finallyTime);
            month++;
        }*/
        map.put("months", months);
        List<Integer> memberCount = memberService.findMemberCountByMonths(months);
        map.put("memberCount", memberCount);
        return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
    }
    //获得一段时间内的月份列表
    private static List<String> getMonthBetween(String minDate, String maxDate){
        ArrayList<String> result = new ArrayList<String>();
        try {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");//格式化为年月

            Calendar min = Calendar.getInstance();
            Calendar max = Calendar.getInstance();
            min.setTime(sdf.parse(minDate));
            min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1);

            max.setTime(sdf.parse(maxDate));
            max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2);

            Calendar curr = min;
            while (curr.before(max)) {
                result.add(sdf.format(curr.getTime()));
                curr.add(Calendar.MONTH, 1);
            }
            System.out.println(result);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return result;
    }
    //套餐预约占比饼形图
    @RequestMapping("/getSetmealReport")
    @PreAuthorize("hasAuthority('REPORT_VIEW')")
    public Result getSetmealReport() {
        //使用模拟数据测试使用什么样的java对象转为饼形图所需的json数据格式
        Map<String, Object> data = new HashMap<>();
        try {
            List<Map<String, Object>> setmealCount = setmealService.findSetmealCount();
            data.put("setmealCount", setmealCount);
            List<String> setmealNames = new ArrayList<>();
            for (Map<String, Object> map : setmealCount) {
                String name = (String) map.get("name");
                setmealNames.add(name);
            }
            data.put("setmealNames", setmealNames);
            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    //会员男女比例占比
    @RequestMapping("/getMenAndWomen")
    public Result getMenAndWomen() {
        try {
            Map<String, Object> data = new HashMap<>();

            List<Map<String, Object>> sexCount = memberService.getMemberCount();
            data.put("sexCount", sexCount);
            List<String> sex = new ArrayList<>();
            for (Map<String, Object> map : sexCount) {
                String sexName = (String) map.get("name");
                if ("1".equals(sexName)) {
                    sexName = "男";
                    map.put("name", "男");
                } else if("2".equals(sexName)){
                    sexName = "女";
                    map.put("name", "女");
                } else {
                    sexName = "未设置性别";
                    map.put("name", "未设置性别");
                }
                sex.add(sexName);
            }
            data.put("sex", sex);
            data.put("sexCount", sexCount);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }

    @RequestMapping("/getAgeReport")
    public Result getAgeReport() {
        Map<String, Object> data = new HashMap<>();
        try {
            List<Map<String, Object>> ageCount = memberService.getAgeCount();

            List<String> age = new ArrayList<>();

            for (Map<String, Object> map1 : ageCount) {
                String ageName = (String) map1.get("name");
                age.add(ageName);
            }
            data.put("age", age);
            data.put("ageCount", ageCount);

            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, data);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }

    //运营数据统计
    @RequestMapping("/getBusinessReportData")
    @PreAuthorize("hasAuthority('REPORT_VIEW')")
    public Result getBusinessReportData() {
        try {
            Map<String, Object> data = reportService.getBusinessReportData();
            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS, data);
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
    
    //导出运营数据到excel文件并提供客户端下载
    @RequestMapping("/exportBusinessReport")
    @PreAuthorize("hasAuthority('REPORT_VIEW')")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReportData();
            //取出返回结果数据，准备将报表数据写入到Excel文件中
            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");
            //动态获得模板文件在磁盘的绝对路径
            String filePath = request.getSession().getServletContext().getRealPath("template") + File.separator + "report_template.xlsx";
            //基于提供的Excel模板文件在内存中创建一个Excel表格对象
            XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
            //读取第一个工作表
            XSSFSheet sheet = excel.getSheetAt(0);
            
            //获得第三行
            XSSFRow row = sheet.getRow(2);
            //获得第六列
            XSSFCell cell = row.getCell(5);
            //写入信息
            cell.setCellValue(reportDate);
            
            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数
            
            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            int rowNum = 12;
            for (Map map : hotSetmeal) {//热门套餐
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum++);
                row.getCell(4).setCellValue(name);//套餐名称
                row.getCell(5).setCellValue(setmeal_count);//预约数量
                row.getCell(6).setCellValue(proportion.doubleValue());//占比
            }

            //使用输出流进行表格下载,基于浏览器作为客户端下载
            OutputStream out = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx");//指定以附件形式进行下载
            excel.write(out);
            out.flush();
            out.close();
            excel.close();
            return null;
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //导出运营数据到PDF文件并提供客户端下载
    @RequestMapping("/exportBusinessReport4PDF")
    @PreAuthorize("hasAuthority('REPORT_VIEW')")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReportData();
            //取出返回结果数据，准备将报表数据写入到Excel文件中
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            //动态获得模板文件在磁盘的绝对路径
            String jrxmlPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business.jrxml";
            String jasperPath = request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business.jasper";
            //模板编译，编译为后缀为jasper的二进制文件
            JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);
            //填充数据---使用JavaBean数据源方式填充
            JasperPrint jasperPrint = JasperFillManager.fillReport(jasperPath, result, new JRBeanCollectionDataSource(hotSetmeal));


            //使用输出流进行表格下载,基于浏览器作为客户端下载
            OutputStream out = response.getOutputStream();
            response.setContentType("application/pdf");//代表的是Excel文件类型
            response.setHeader("content-Disposition", "attachment;filename=report.PDF");//指定以附件形式进行下载
            //输出文件
            JasperExportManager.exportReportToPdfStream(jasperPrint, out);
            out.flush();
            out.close();
            return null;
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
